Sibylla of Acerra

Sibylla strongly opposed Tancred honoring Constance, believing this would implicitly acknowledge the claim of the latter.

So, as suggested by Tancred, she went for a discussion with Chancellor Matthew d'Ajello on where to imprison Constance, and in her presence Matthew wrote a letter managing to persuade Tancred to imprison the empress in the Castel dell'Ovo at Naples, a castle on an island surrounded by water.

Tancred died in February 1194 and the Kingdom of Sicily passed to his young son William III with Queen Sibylla as regent.

[3] When Henry VI crossed the Strait of Messina in autumn 1194, Sibylla negotiated an agreement whereby William III, who had been whisked off to safety, should retain the County of Lecce and Principality of Taranto.

Sibylla and her daughters were placed in a convent from which they managed to escape to France while Pope Innocent III petitioned Henry for her release.